The Mediating Role of Alexithymia: Social Support and Depression among Colorectal Cancer Patients

Abstract

Purpose. The purpose of this study was to investigate the relationship among depression, alexithymia, and social support and examine the main influence factors of depression in patients with colorectal cancer (CRC). In addition, the mediating role of alexithymia between social support and depression was analyzed. Methods. Patients with CRC were recruited in two tertiary hospitals in Changchun via a convenience sampling method. All survivors were asked to complete self-report questionnaires assessing medical and demographic variables, depression, alexithymia, and social support. Results. A total of 183 patients with CRC were included. The results showed that education level and family monthly income were the main factors affecting depression patients with in CRC. Alexithymia was positively correlated with depression ( $r=0.389$ , $P<0.01$ ). Social support was negatively correlated with alexithymia ( $r=-0.322$ , $P<0.01$ ) and depression ( $r=-0.316$ , $P<0.01$ ). Moreover, alexithmia partially mediated the relationship between social support and depression, and the ratio of mediating effect with total effect was 23.82%. Conclusions. To sum up, there is a correlation between depression, social support, and alexithymia in patients with CRC; alexithymia plays a partially intermediary role in the impact of social support on depression. Our findings remind clinicians to treat the depression of patients with CRC from multiple perspectives, such as by increasing social support and reducing alexithymia.